A size-adjustable mine slot steel

Abstract

This utility model discloses an adjustable-size mining channel steel, comprising a channel steel body. Rectangular slots are provided at the midpoints of both ends of the front outer surface of the channel steel body. Snap-fit ​​holes are provided at the midpoints of the front ends of both outer surfaces of the channel steel body, and these snap-fit ​​holes communicate with the rectangular slots. Insertion holes are provided at equal intervals at the bottom of the front outer surface of the channel steel body. Reinforcing bars are provided at equal intervals at the bottom of the rear outer surface of the channel steel body. Snap-fit ​​components are fixedly installed at the midpoints of both ends of the rear outer surface of the channel steel body. This adjustable-size mining channel steel, through a segmented splicing structure design, allows for adjustment of the channel steel length to adapt to different roadway size requirements. The reinforcing bars are inserted into the insertion holes after splicing, providing reinforcement.

Description

Technical Field

[0001] This utility model relates to the field of channel steel technology, specifically to an adjustable-size mining channel steel. Background Technology

[0002] In coal mining and tunnel support engineering, channel steel is widely used as an important supporting component for the reinforcement and protection of tunnel walls. However, most existing channel steel designs are of fixed dimensions, and their length and structure cannot be adjusted according to the actual dimensions of the tunnel.

[0003] Different tunnels have different widths and heights, and fixed-size channel steel cannot meet diverse support needs, resulting in the need to customize various specifications during construction, which increases production costs and inventory management difficulties.

[0004] Therefore, we propose an adjustable-size mining channel steel. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides an adjustable-size mining channel steel. Through a segmented splicing structure design, the length of the channel steel can be adjusted to adapt to different roadway size requirements, effectively solving the problems in the background technology.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an adjustable-size mining channel steel, comprising a channel steel body, wherein rectangular slots are provided at the middle of the left and right ends of the front outer surface of the channel steel body, and snap-fit ​​holes are provided at the middle of the front ends of the two outer surfaces of the channel steel body, and the snap-fit ​​holes are connected to the rectangular slots, and insertion holes are provided at equal intervals at the bottom of the front outer surface of the channel steel body, and reinforcing bars are provided at equal intervals at the bottom of the rear outer surface of the channel steel body, and snap-fit ​​components are fixedly installed at the middle of the left and right ends of the rear outer surface of the channel steel body, wherein the snap-fit ​​components include insert blocks, mounting holes, snap-fit ​​pins, guide holes, guide rods and compression springs, and the number of snap-fit ​​components, rectangular slots and snap-fit ​​holes in a set of channel steel bodies is two sets, and the insert blocks in the two sets of snap-fit ​​components are fixedly installed at the middle of the left and right ends of the rear outer surface of the channel steel body.

[0009] Preferably, the mounting hole is formed on one side of the outer surface of the insert block.

[0010] Preferably, the compression spring and the guide rod are both located in the mounting hole, one end of the outer surface of the guide rod is fixedly connected to the middle of one end of the mounting hole, and the compression spring is movably sleeved on the outer wall of the guide rod.

[0011] Preferably, the compression spring is fixed between the outer surface of one end of the snap-fit ​​pin and the outer surface of one end of the mounting hole, the guide hole is opened in the middle of the outer surface of one end of the snap-fit ​​pin, and the snap-fit ​​pin is slidably connected to the outer wall of the guide rod through the guide hole.

[0012] Preferably, the outer wall of the locking pin is slidably connected to the mounting hole, and one end of the outer surface of the locking pin is elastically connected to one end of the mounting hole through a compression spring.

[0013] Preferably, the outer wall of the insert block is connected to the rectangular slot of the adjacent external channel steel body through an insertion fit to achieve lateral connection of multiple sets of channel steel bodies. The locking pin is locked into the locking hole of the adjacent channel steel body under the elastic force of the compression spring, thereby completing the rapid assembly and fixing of multiple sets of channel steel bodies; the reinforcing steel bar is inserted into the insertion hole of the adjacent channel steel body.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides an adjustable-size mining channel steel, which has the following advantages:

[0016] 1. This adjustable-size mining channel steel, through a segmented splicing structure design, allows for lateral connection between channel steel bodies via the cooperation of insert blocks and rectangular slots. The number of splices can be freely adjusted according to actual needs, thereby adapting to the size requirements of different roadways and solving the problem of poor adaptability of traditional fixed-size channel steel.

[0017] 2. This adjustable-size mining channel steel, after splicing, has reinforcing bars at the rear end of the channel steel body inserted into the insertion holes of adjacent channel steel, forming multi-point reinforcement, effectively enhancing the compressive and shear resistance of the connection parts. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an adjustable-size mining channel steel according to the present invention.

[0019] Figure 2 This is a schematic diagram of the structure of a snap-fit ​​assembly for an adjustable-size mining channel steel section according to this utility model.

[0020] Figure 3 This is a cross-sectional view of one end of a snap-fit ​​assembly in an adjustable-size mining channel steel according to the present invention.

[0021] Figure 4 This is a schematic diagram of the structure of two sets of channel steel bodies spliced ​​together in an adjustable-size mining channel steel of this utility model.

[0022] In the diagram: 1. Steel body of the channel side; 2. Rectangular slot; 3. Insertion hole; 4. Snap-fit ​​hole; 5. Reinforcing steel bar; 6. Snap-fit ​​assembly; 7. Insert block; 8. Mounting hole; 9. Snap-fit ​​pin; 11. Guide hole; 12. Guide rod; 13. Compression spring. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] This embodiment is a mine channel steel with adjustable dimensions.

[0025] like Figure 1-4 As shown, the device includes a channel steel body 1. Rectangular slots 2 are provided at the middle of the left and right ends of the front outer surface of the channel steel body 1. Snap-fit ​​holes 4 are provided at the middle of the front ends of the outer surfaces on both sides of the channel steel body 1, and the snap-fit ​​holes 4 communicate with the rectangular slots 2. Insertion holes 3 are provided at equal intervals at the bottom of the front outer surface of the channel steel body 1. Reinforcing steel bars 5 are provided at equal intervals at the bottom of the rear outer surface of the channel steel body 1. Snap-fit ​​components 6 are fixedly installed at the middle of the left and right ends of the rear outer surface of the channel steel body 1. The snap-fit ​​components 6 include insert blocks 7, mounting holes 8, snap-fit ​​pins 9, guide holes 11, guide rods 12, and compression springs 13. Each set of channel steel bodies 1 contains two sets of snap-fit ​​components 6, rectangular slots 2, and snap-fit ​​holes 4. The insert blocks 7 in both sets of snap-fit ​​components 6 are fixedly installed at the middle of the left and right ends of the rear outer surface of the channel steel body 1.

[0026] Mounting hole 8 is formed on one side of the outer surface of insert block 7; compression spring 13 and guide rod 12 are both located in mounting hole 8, one end of the outer surface of guide rod 12 is fixedly connected to the middle of one end of mounting hole 8, and compression spring 13 is movably sleeved on the outer wall of guide rod 12; compression spring 13 is fixed between one end of the outer surface of locking pin 9 and one end of the outer surface of mounting hole 8, guide hole 11 is formed in the middle of one end of the outer surface of locking pin 9, and locking pin 9 is slidably connected to the outer wall of guide rod 12 through guide hole 11; the outer wall of locking pin 9... The mounting hole 8 is slidably connected to the mounting hole 8. One end of the snap-fit ​​pin 9 is elastically connected to one end of the mounting hole 8 through a compression spring 13. The outer wall of the insert block 7 is connected to the rectangular slot 2 of the adjacent channel steel body 1 through a plug-in fit to achieve the lateral connection of multiple sets of channel steel bodies 1. Under the elastic force of the compression spring 13, the snap-fit ​​pin 9 is inserted into the snap-fit ​​hole 4 of the adjacent channel steel body 1, thereby completing the rapid assembly and fixation between multiple sets of channel steel bodies 1. The reinforcing steel bar 5 is inserted into the plug-fit hole 3 of the adjacent channel steel body 1.

[0027] It should be noted that this utility model is an adjustable-size mining channel steel. When the channel steel bodies 1 are spliced ​​together, the snap-fit ​​component 6 is set to press the snap-fit ​​pin 9 in the snap-fit ​​component 6 in one set of channel steel bodies 1. The snap-fit ​​pin 9 slides along the mounting hole 8 and slides along the guide rod 12 through the guide hole 11. The snap-fit ​​pin 9 presses the compression spring 13 in the mounting hole 8, so that one end of the snap-fit ​​pin 9 enters the mounting hole 8. Then, the insert block 7 is inserted into the rectangular slot 2 of another set of channel steel bodies 1. When the snap-fit ​​pin 9 reaches the position of the snap-fit ​​hole 4, the reaction force of the compression spring 13 drives one end of the snap-fit ​​pin 9 to snap into the snap-fit ​​hole 4, realizing assembly and facilitating disassembly. During installation, the reinforcing steel bar 5 is inserted into the insertion hole 3 to increase the strength after connection.

[0028] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An adjustable-size mining channel steel, comprising a channel steel body (1), characterized in that: The front end of the steel body (1) has rectangular slots (2) at the middle of both ends of the outer surface. The front end of both sides of the steel body (1) has snap-fit ​​holes (4) at the middle of the outer surface. The snap-fit ​​holes (4) are connected to the rectangular slots (2). The bottom of the front end of the steel body (1) has insertion holes (3) at equal intervals. The bottom of the rear end of the steel body (1) has reinforcing bars (5) at equal intervals. The middle of both ends of the rear end of the steel body (1) has snap-fit ​​components (6) fixedly installed. The snap-fit ​​components (6) include inserts (7), mounting holes (8), snap-fit ​​pins (9), guide holes (11), guide rods (12) and compression springs (13). The number of snap-fit ​​components (6), rectangular slots (2) and snap-fit ​​holes (4) in a set of steel bodies (1) is two sets. The inserts (7) in the two sets of snap-fit ​​components (6) are fixedly installed at the middle of both ends of the rear end of the steel body (1).

2. The adjustable-size mining channel steel according to claim 1, characterized in that: The mounting hole (8) is opened on one side of the outer surface of the insert (7).

3. The adjustable-size mining channel steel according to claim 2, characterized in that: The compression spring (13) and the guide rod (12) are both located in the mounting hole (8). One end of the outer surface of the guide rod (12) is fixedly connected to the middle of one end of the mounting hole (8). The compression spring (13) is movably sleeved on the outer wall of the guide rod (12).

4. The adjustable-size mining channel steel according to claim 3, characterized in that: The compression spring (13) is fixed between the outer surface of one end of the snap pin (9) and the outer surface of one end of the mounting hole (8). The guide hole (11) is opened in the middle of the outer surface of one end of the snap pin (9). The snap pin (9) is slidably connected to the outer wall of the guide rod (12) through the guide hole (11).

5. The adjustable-size mining channel steel according to claim 4, characterized in that: The outer wall of the snap-fit ​​pin (9) is slidably connected to the mounting hole (8), and one end of the outer surface of the snap-fit ​​pin (9) is elastically connected to one end of the mounting hole (8) through a compression spring (13).

6. The adjustable-size mining channel steel according to claim 5, characterized in that: The outer wall of the insert (7) and the rectangular slot (2) of the adjacent external channel steel body (1) are connected by insertion to achieve the lateral connection of multiple sets of channel steel bodies (1). The snap-fit ​​pin (9) is snapped into the snap-fit ​​hole (4) of the adjacent channel steel body (1) under the elastic force of the compression spring (13), thereby completing the rapid assembly and fixing of multiple sets of channel steel bodies (1). The reinforcing bar (5) is inserted into the snap-fit ​​hole (3) of the adjacent channel steel body (1).

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